Sedimentary Rock Scientific Method

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I Problem/ Purpose/ Question

• How are sedimentary rocks formed?

II Hypothesis

• If I mix the three sizes of grain together with water, then the three layers of rock will separate, and the silt will go on the top, outer layer, the sand will go in the middle layer, and the clay will be seen on the bottom layer

III Materials

• 1 cup of sand
• 1 cup of silt
• 1 cup of clay
• 4 magnifying glasses
• 1 big clear cup
• 1 cup of water
• 1 popsicle stick

IV Procedure

1. Analyze the data and three samples- sand, silt and clay
2. Record the data
3. Pour the three sample into the cup with water, and mix it
4. Let it sit for about 1 week, and observe

V Data/Observations

Before	After
looked like milkshake sand at the bottom clay and silt at the top	still looked like a milkshake clay was on the bottom sand was in the middle silt was on the top

VI CER a.k.a Claim/Evidence/Reasoning

Our hypothesis was correct- the silt was on the top, the sad was in the middle, and the clay ended o the bottom. This shows that the heavier sediments went t the bottom, and the lighter sediments flowed to the top.